It's probably about time. The series started losing steam when they went into the forced arcs with a couple of the other girls being pushed in spite of everyone knowing they were going to lose because it had been clear since the very beginning that the two leads had feelings for each other.
Though I am laughing at this announcement a little bit because I'm pretty sure in the last year or two there was already an announcement that the series was going to end that looked like it was timed to align with the confession and then they just went "nah, psych. We're going to keep going."
That said, I do appreciate that at least this series did have the good grace to continue with the leads as a couple for a while instead of treating the confession as the finish line.